################################################################################
# Embtoolkit
# Copyright(C) 2009-2011 Abdoulaye Walsimou GAYE. All rights reserved.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
#
# \file         eglibc.mk
# \brief	eglibc.mk of Embtoolkit
# \author       Abdoulaye Walsimou GAYE <awg@embtoolkit.org>
# \date         May 2009
################################################################################

EGLIBC_VERSION := $(subst ",,$(strip $(CONFIG_EMBTK_EGLIBC_VERSION_STRING)))
EGLIBC_BRANCH := $(subst ",,$(strip $(CONFIG_EMBTK_EGLIBC_BRANCH_STRING)))
EGLIBC_SVN_REVISION := $(CONFIG_EMBTK_EGLIBC_SVN_REVISION)
EGLIBC_SITE := http://www.eglibc.org
EGLIBC_SVN_SITE := http://www.eglibc.org/svn
EGLIBC_PATCHES_SITE := ftp://ftp.embtoolkit.org/embtoolkit.org/eglibc/patches
EGLIBC_PACKAGE := eglibc-$(EGLIBC_VERSION).tar.bz2
EGLIBC_HEADERS_BUILD_DIR := $(TOOLS_BUILD)/eglibc-headers
EGLIBC_BUILD_DIR := $(TOOLS_BUILD)/eglibc

EMBTK_EGLIBC_CFLAGS := $(TARGET_CFLAGS) $(EMBTK_TARGET_MCPU)
EMBTK_EGLIBC_CFLAGS += $(EMBTK_TARGET_ABI) $(EMBTK_TARGET_FLOAT_CFLAGS)
EMBTK_EGLIBC_CFLAGS += $(EMBTK_TARGET_MARCH) -pipe

#Hard or soft floating point in eglibc?
ifeq ($(CONFIG_EMBTK_SOFTFLOAT),y)
EGLIBC_FLOAT_TYPE := --with-fp=no
else
EGLIBC_FLOAT_TYPE := --with-fp=yes
endif

# Versioning in eglibc
EGLIBC_VERSIONING_OPTION := \
	$(if $(CONFIG_EMBTK_EGLIBC_DISABLE_VERSIONING),--disable-versioning,)

OPTION_GROUPS_FILE = $(EMBTK_ROOT)/mk/eglibc/eglibc-$(EGLIBC_VERSION)-options.mk

eglibc-headers_install: $(EGLIBC_HEADERS_BUILD_DIR)/.installed
eglibc_install: $(EGLIBC_BUILD_DIR)/.installed

$(EGLIBC_HEADERS_BUILD_DIR)/.installed: eglibc_download \
	$(EGLIBC_HEADERS_BUILD_DIR)/.decompressed \
	EGLIBC_OPTIONS_PARSE $(EGLIBC_HEADERS_BUILD_DIR)/.configured
	$(call EMBTK_INSTALL_MSG,"headers eglibc-$(EGLIBC_VERSION)")
	$(MAKE) -C $(EGLIBC_HEADERS_BUILD_DIR) install-headers \
	install_root=$(SYSROOT) install-bootstrap-headers=yes && \
	$(MAKE) -C $(EGLIBC_HEADERS_BUILD_DIR) csu/subdir_lib
	@cp $(EGLIBC_HEADERS_BUILD_DIR)/csu/crt1.o $(SYSROOT)/usr/lib/
	@cp $(EGLIBC_HEADERS_BUILD_DIR)/csu/crti.o $(SYSROOT)/usr/lib/
	@cp $(EGLIBC_HEADERS_BUILD_DIR)/csu/crtn.o $(SYSROOT)/usr/lib/
	$(TOOLS)/bin/$(STRICT_GNU_TARGET)-gcc -nostdlib -nostartfiles \
	-shared -x c /dev/null -o $(SYSROOT)/usr/lib/libc.so
	@touch $@

eglibc_download:
	$(call EMBTK_GENERIC_MESSAGE,"downloading eglibc-$(EGLIBC_VERSION) \
	if necessary ...")
ifeq ($(CONFIG_EMBTK_EGLIBC_VERSION_STRING),"trunk")
	@cd $(EMBTK_ROOT)/src; \
	svn co $(EGLIBC_SVN_SITE)/trunk \
	-r$(EGLIBC_SVN_REVISION) eglibc-$(EGLIBC_VERSION)
else
	@cd $(EMBTK_ROOT)/src; \
	svn co $(EGLIBC_SVN_SITE)/branches/eglibc-$(EGLIBC_BRANCH) \
	-r$(EGLIBC_SVN_REVISION) eglibc-$(EGLIBC_VERSION)
endif
	@cd $(EMBTK_ROOT)/src; \
	cd eglibc-$(EGLIBC_VERSION); touch `find . -name configure`; cd ../;\
	test -e $(DOWNLOAD_DIR)/$(EGLIBC_PACKAGE) || \
	tar cjvf $(EGLIBC_PACKAGE) eglibc-$(EGLIBC_VERSION); \
	test -e $(DOWNLOAD_DIR)/$(EGLIBC_PACKAGE) || \
	mv $(EGLIBC_PACKAGE) $(DOWNLOAD_DIR)
ifeq	($(CONFIG_EMBTK_EGLIBC_NEED_PATCH),y)
	@test -e $(DOWNLOAD_DIR)/eglibc-$(EGLIBC_VERSION).patch || \
	wget $(EGLIBC_PATCHES_SITE)/eglibc-$(EGLIBC_VERSION)-*.patch \
	-O $(DOWNLOAD_DIR)/eglibc-$(EGLIBC_VERSION).patch
endif

$(EGLIBC_HEADERS_BUILD_DIR)/.decompressed:
	$(call EMBTK_DECOMPRESS_MSG,$(EGLIBC_PACKAGE))
	@tar -C $(TOOLS_BUILD) -xjf $(DOWNLOAD_DIR)/$(EGLIBC_PACKAGE)
ifeq	($(CONFIG_EMBTK_EGLIBC_NEED_PATCH),y)
	cd $(TOOLS_BUILD)/eglibc-$(EGLIBC_VERSION); \
	patch -p1 < $(DOWNLOAD_DIR)/eglibc-$(EGLIBC_VERSION).patch
endif
	@cp -R $(TOOLS_BUILD)/eglibc-$(EGLIBC_VERSION)/ports \
	$(TOOLS_BUILD)/eglibc-$(EGLIBC_VERSION)/libc/
	@mkdir -p $(EGLIBC_HEADERS_BUILD_DIR)
	@mkdir -p $(EGLIBC_BUILD_DIR)
	@touch $@

$(EGLIBC_HEADERS_BUILD_DIR)/.configured:
	$(call EMBTK_CONFIGURE_MSG,eglibc-$(EGLIBC_VERSION))
	cd $(EGLIBC_HEADERS_BUILD_DIR); BUILD_CC=$(HOSTCC_CACHED) \
	CFLAGS="$(EMBTK_EGLIBC_CFLAGS)" \
	CC=$(TOOLS)/bin/$(STRICT_GNU_TARGET)-gcc \
	CXX=$(TOOLS)/bin/$(STRICT_GNU_TARGET)-g++ \
	AR=$(TOOLS)/bin/$(STRICT_GNU_TARGET)-ar \
	RANLIB=$(TOOLS)/bin/$(STRICT_GNU_TARGET)-ranlib \
	$(TOOLS_BUILD)/eglibc-$(EGLIBC_VERSION)/libc/configure --prefix=/usr \
	--with-headers=$(SYSROOT)/usr/include \
	--host=$(STRICT_GNU_TARGET) --build=$(HOST_BUILD) $(EGLIBC_FLOAT_TYPE) \
	--disable-profile --without-gd --without-cvs --enable-add-ons \
	--enable-kernel="2.6.0" $(EGLIBC_VERSIONING_OPTION) \
	--with-bugurl=$(EMBTK_BUGURL)
	@touch $@

$(EGLIBC_BUILD_DIR)/.installed: $(EGLIBC_BUILD_DIR)/.configured
	$(call EMBTK_INSTALL_MSG,eglibc-$(EGLIBC_VERSION))
	PATH=$(PATH):$(TOOLS)/bin/ $(MAKE) -C $(EGLIBC_BUILD_DIR) $(J)
	PATH=$(PATH):$(TOOLS)/bin/ $(MAKE) -C $(EGLIBC_BUILD_DIR) install \
	install_root=$(SYSROOT)
	@touch $@

$(EGLIBC_BUILD_DIR)/.configured:
	$(call EMBTK_CONFIGURE_MSG,eglibc-$(EGLIBC_VERSION))
	cd $(EGLIBC_BUILD_DIR); BUILD_CC=$(HOSTCC_CACHED) \
	CFLAGS="$(EMBTK_EGLIBC_CFLAGS)" \
	CC=$(TARGETCC_CACHED) \
	CXX=$(TARGETCXX_CACHED) \
	AR=$(TARGETAR) \
	RANLIB=$(TARGETRANLIB) \
	$(TOOLS_BUILD)/eglibc-$(EGLIBC_VERSION)/libc/configure --prefix=/usr \
	--with-headers=$(SYSROOT)/usr/include \
	--host=$(STRICT_GNU_TARGET) --build=$(HOST_BUILD) $(EGLIBC_FLOAT_TYPE) \
	--disable-profile --without-gd --without-cvs --enable-add-ons \
	--enable-kernel="2.6.0" $(EGLIBC_VERSIONING_OPTION) \
	--with-bugurl=$(EMBTK_BUGURL) \
	--with-pkgversion="EGLIBC from embtoolkit-$(EMBTK_VERSION)"
	@touch $@

EGLIBC_OPTIONS_PARSE:
	$(call EMBTK_GENERIC_MESSAGE,"Parsing \
	eglibc-$(EGLIBC_VERSION) option groups...")
	@cat $(OPTION_GROUPS_FILE) > $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config
	@echo "#######################################################" >> $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config
	@echo "# From embtoolkit-$(EMBTK_VERSION) configuration menu #" >> $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config
	@echo "#######################################################" >> $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config
	@grep "CONFIG_KEMBTK_EGLIBC_" $(EMBTK_ROOT)/.config | \
	sed -e 's/CONFIG_KEMBTK_EGLIBC_*//g' \
	>> $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config
	@sed -i 's/"//g' $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config
	@cp $(EGLIBC_HEADERS_BUILD_DIR)/option-groups.config \
	$(EGLIBC_BUILD_DIR)/option-groups.config